The idea that you can lose weight after cholecystectomy may be that bile is an important part of digesting fat, but bile is not the first to secrete bile. There are many reasons for obesity, such as sugar, high-sugar juice, high-sugar yogurt and so on.
In fact, moderate intake of fat is helpful to lose weight, because if you want to lose weight, you must control your calorie intake, whether it comes from vegetables or fruits. And foods with the same calories and certain fat will make you feel fuller and help you stick to your diet.